Ingredient review
Ethanolamine
INCI: Ethanolamine
Ethanolamine is an effective pH adjuster but can be irritating for sensitive skin, especially in leave-on products.
In plain English
Ethanolamine is a synthetic ingredient that helps control the pH of skincare and haircare products. pH is a measure of how acidic or alkaline something is, and keeping it balanced helps other ingredients work well and keeps the product stable. It's often used in cleansers and shampoos to make them less harsh, but in higher amounts or in leave-on products, it may cause irritation for some people.
Review score
Safety, usefulness, and evidence
Potentially useful with some tradeoffs
The evidence base is useful, but some claims depend heavily on the formula.
Main practical flags: irritation is moderate; clogging risk is low.
- Source
- synthetic
- Evidence
- moderate
- Irritation
- moderate
- Clogging risk
- low
Quick decision guide
Useful, but context matters
Ethanolamine can be useful, but watch for some irritation potential.
Plain-English read
Treat this as a practical screening step before you compare products that contain this ingredient.
- Step 1Start with the score, then check the irritation and clogging risk before judging Ethanolamine.
- Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
- Step 3If a product stings, breaks you out, or worsens irritation, judge the finished formula and stop using it even if the ingredient scores well.
Score terms in plain English
Irritation risk
moderateCan bother some users, especially with frequent use, damaged skin, or strong companion ingredients.
Clogging risk
lowLess likely to feel heavy or contribute to clogged pores for most skin types.
Evidence level
moderateThere is useful support, but formula details and claim strength still matter.
What it is
Ethanolamine is a simple organic compound that acts as a base, meaning it can neutralize acids to raise the pH of a formula. It is commonly used as a cheaper alternative to triethanolamine (TEA) in cosmetics.
How it works
In a cosmetic product, ethanolamine reacts with acidic ingredients to adjust the overall pH to a desired level, typically around 5.5 to 7.0 for skin-friendly formulas. This helps the product feel milder and more stable over time.
Pros
Effective pH balancer
Helps keep the product at a skin-friendly pH, which can improve tolerance and effectiveness of other ingredients.
Cost-effective
Often used as a more affordable alternative to other pH adjusters, keeping product prices lower for consumers.
Cons and cautions
Irritation potential
Can cause stinging, redness, or irritation, especially for sensitive skin or in leave-on products where it stays on the skin longer.
Not for sensitive skin
Even in low concentrations, some people may react, making it a less ideal choice for those with reactive skin.
Best for
- People with normal to oily skin using rinse-off products
- Those looking for affordable, effective pH adjustment in their routine
Use caution if
- Individuals with very sensitive, reactive, or eczema-prone skin
- Anyone using leave-on products with ethanolamine high on the ingredient list
Usage tips
Safety summary
Ethanolamine is considered safe for use in cosmetics at typical concentrations, but it can be a mild to moderate irritant for sensitive individuals. Regulatory bodies have set limits to ensure safety in rinse-off and leave-on products.
Research notes
Studies show ethanolamine is an effective pH adjuster with low acute toxicity, but repeated exposure may cause skin irritation in some people. It is less studied than alternatives like triethanolamine, but current evidence supports its safe use within regulated limits.
Common label clues
- Typical concentration
- Typically used at 0.1% to 2% in rinse-off products, lower in leave-on formulas
- Regulatory status
- Approved for use in cosmetics by the FDA and the European Commission, with concentration limits in some product categories to minimize irritation.
- Common uses
- Cleansers, Shampoos, Hair color, Skin creams
- Environmental note
- Ethanolamine is synthetic and not biodegradable in all conditions, so its environmental impact is a consideration for eco-conscious consumers.
Good to know
- Ethanolamine is sometimes listed as 'MEA' on labels.
- It is not the same as ethanol (alcohol) and does not have drying effects like alcohol.
Common questions
What is Ethanolamine in beauty products?
Ethanolamine is a synthetic ingredient that helps control the pH of skincare and haircare products. pH is a measure of how acidic or alkaline something is, and keeping it balanced helps other ingredients work well and keeps the product stable. It's often used in cleansers and shampoos to make them less harsh, but in higher amounts or in leave-on products, it may cause irritation for some people.
What does Ethanolamine do in a beauty product?
In a cosmetic product, ethanolamine reacts with acidic ingredients to adjust the overall pH to a desired level, typically around 5.5 to 7.0 for skin-friendly formulas. This helps the product feel milder and more stable over time.
Is Ethanolamine safe for most people?
Ethanolamine is considered safe for use in cosmetics at typical concentrations, but it can be a mild to moderate irritant for sensitive individuals. Regulatory bodies have set limits to ensure safety in rinse-off and leave-on products.
Who should be careful with Ethanolamine?
Individuals with very sensitive, reactive, or eczema-prone skin Anyone using leave-on products with ethanolamine high on the ingredient list
Research sources
Ingredient reviews are educational and are not medical advice. Patch test new products and ask a licensed clinician about persistent irritation, allergies, pregnancy-specific questions, or diagnosed skin conditions.